We cannot generate a key for personal athlete data at this time.
The keys are (currently) scoped to the gym that they are generated from. API keys only generate access to the entire gyms' data.
If your gym owner wants to give you this access, have them log in to the sugarwod.com website and generate a key in the "Settings" area of the site.
We have plans to open up the API to individual athletes later, but at the moment our focus is on the gym.